this impression can using existing track am using existing right-of-way is easier, cheaper than just building new track or same thing is true with highways, that sort of thing. and, obviously, it sounds like, unicom with a lot of the logistical hurdles with a train speed, just assessing that, and straightening all that out, like you pointing out, if something is going to be very difficult and costly. >> indeed. and you also asked about the legal contractual issues. obviously, the freight railroads are in operation to serve america's communities, to serve america's farmers and manufacturers, and get their goods to market. and so that all has to be, make sure as i mentioned, the capacity principle, we have to make sure that there's adequate capacity to keep america's economy moving as well. >> thank you. i yield to ms. edwards.